diff --git a/recipes/core/uutils/redox.patch b/recipes/core/uutils/redox.patch
index e5f76ef1..75e972d6 100644
--- a/recipes/core/uutils/redox.patch
+++ b/recipes/core/uutils/redox.patch
@@ -48,6 +48,66 @@ index fd1f30303..c508f6b9b 100644
  #[cfg(test)]
  mod tests {
      // Note this useful idiom: importing names from outer (for mod tests) scope.
+diff --git a/src/uucore/src/lib/features/i18n/mod.rs b/src/uucore/src/lib/features/i18n/mod.rs
+index 282baf2e7..a38ccb30e 100644
+--- a/src/uucore/src/lib/features/i18n/mod.rs
++++ b/src/uucore/src/lib/features/i18n/mod.rs
+@@ -45,8 +45,21 @@ pub fn get_locale_from_env(locale_name: &str) -> (Locale, UEncoding) {
+ 
+         if let Some(simple) = split.next() {
+             // Handle explicit C and POSIX locales - these should always use byte comparison
++            let encoding = split.next();
++            let is_utf8 = encoding.is_some_and(|enc| {
++                let lower = enc.to_lowercase();
++                lower == "utf-8" || lower == "utf8"
++            });
++
+             if simple == "C" || simple == "POSIX" {
+-                return (DEFAULT_LOCALE, UEncoding::Ascii);
++                return (
++                    DEFAULT_LOCALE,
++                    if is_utf8 {
++                        UEncoding::Utf8
++                    } else {
++                        UEncoding::Ascii
++                    },
++                );
+             }
+ 
+             // Naively convert the locale name to BCP47 tag format.
+@@ -55,14 +68,9 @@ pub fn get_locale_from_env(locale_name: &str) -> (Locale, UEncoding) {
+             let bcp47 = simple.replace('_', "-");
+             let locale = Locale::try_from_str(&bcp47).unwrap_or(DEFAULT_LOCALE);
+ 
+-            // If locale parsing failed, parse the encoding part of the
+-            // locale. Treat the special case of the given locale being "C"
+-            // which becomes the default locale.
+-            let encoding = if (locale != DEFAULT_LOCALE || bcp47 == "C")
+-                && split.next().is_some_and(|enc| {
+-                    let lower = enc.to_lowercase();
+-                    lower == "utf-8" || lower == "utf8"
+-                }) {
++            // If the locale name was parsed successfully, use the encoding suffix
++            // to decide whether filenames should be treated as UTF-8.
++            let encoding = if (locale != DEFAULT_LOCALE || bcp47 == "C") && is_utf8 {
+                 UEncoding::Utf8
+             } else {
+                 UEncoding::Ascii
+@@ -70,8 +78,12 @@ pub fn get_locale_from_env(locale_name: &str) -> (Locale, UEncoding) {
+             return (locale, encoding);
+         }
+     }
+-    // Default POSIX locale representing LC_ALL=C
+-    (DEFAULT_LOCALE, UEncoding::Ascii)
++
++    #[cfg(target_os = "redox")]
++    return (DEFAULT_LOCALE, UEncoding::Utf8);
++
++    #[cfg(not(target_os = "redox"))]
++    return (DEFAULT_LOCALE, UEncoding::Ascii);
+ }
+ 
+ /// Get the collating locale from the environment
 diff --git a/src/uucore/src/lib/mods/locale.rs b/src/uucore/src/lib/mods/locale.rs
 index b670f8976..a4ff9f983 100644
 --- a/src/uucore/src/lib/mods/locale.rs